The invention relates to novel guanidine derivatives in the cinnamic series of general formula (I):
The invention also relates to the process for preparing said guanidine derivatives and also to synthetic intermediates.
Finally, the invention relates to the use of the guanidine derivatives for the preparation of compositions with anti-glycation properties, especially in cosmetology.
Syntheses and anti-inflammatory and analgesic activities of hydroxamic acids and acid hydrazides.
作者:KUNIYOSHI TANAKA、KEIZO MATSUO、AI NAKANISHI、TOSHIKO HATANO、HISAKO IZEKI、YOKO ISHIDA、WASUKE MORI
DOI:10.1248/cpb.31.2810
日期:——
On the basis of the generally accepted view that copper ions take part in the occurrence of inflammation, hydroxamic acids and acid hydrazides derived from various substituted cinnamic acids and hydrocinnamic acids, which were expected to chelate with copper ions, were synthesized and evaluated for anti-inflammatory activity by the carrageenin-induced rat paw edema assay and for analgesic activity by the phenylquinone writhing method in mice. Some of the synthesized compounds exhibited both activities, and 3-(3, 4-dimethoxyphenyl)propiohydroxamic acid and its Zn complex were more active than aspirin. The Cu (II) complexes of hydroxamic acid derivatives were synthesized and were assumed to have polymeric structures from the results of elemental analysis, molecular weight measurement and determination of magnetic susceptibility.